Liguo Qu, Xin Zhang, Zibao Lu, Yuling Liu, Guohao Chen. A traffic sign recognition method based on improved YOLOv5[J]. Opto-Electronic Engineering, 2024, 51(6): 240055-1
- Opto-Electronic Engineering
- Vol. 51, Issue 6, 240055-1 (2024)
Fig. 1. YOLOv5 network structure
Fig. 2. Fog image
Fig. 3. Structure diagram of C3 and PC3
Fig. 4. Conv and PConv
Fig. 5. Distribution of label aspect ratio
Fig. 6. YOLOv5 default path and EFPN path
Fig. 7. Removing the path EFPN' from the large object detection layer
Fig. 8. CBAM attention mechanism
Fig. 9. Improved network structure
Fig. 10. Distribution of traffic signs after expansion
Fig. 11. Comparison of accuracy effects of traffic signs before and after improvement
Fig. 12. Comparison of missed detection effects of traffic signs before and after improvement
Fig. 13. Comparison of false detection effects of traffic signs before and after improvement
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Table 1. Comparison of EFPN and EFPN' structures
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Table 2. YOLOv5 default anchor box size
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Table 3. Results of K-means clustering algorithm
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Table 4. Results of ablation experiment
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Table 5. Performance comparison with other algorithms
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